11573Srgrimes GNU GENERAL PUBLIC LICENSE 21573Srgrimes Version 2, June 1991 31573Srgrimes 41573Srgrimes Copyright (C) 1989, 1991 Free Software Foundation, Inc., 51573Srgrimes 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 61573Srgrimes Everyone is permitted to copy and distribute verbatim copies 71573Srgrimes of this license document, but changing it is not allowed. 81573Srgrimes 91573Srgrimes Preamble 101573Srgrimes 111573Srgrimes The licenses for most software are designed to take away your 121573Srgrimesfreedom to share and change it. By contrast, the GNU General Public 131573SrgrimesLicense is intended to guarantee your freedom to share and change free 141573Srgrimessoftware--to make sure the software is free for all its users. This 151573SrgrimesGeneral Public License applies to most of the Free Software 161573SrgrimesFoundation's software and to any other program whose authors commit to 171573Srgrimesusing it. (Some other Free Software Foundation software is covered by 181573Srgrimesthe GNU Lesser General Public License instead.) You can apply it to 191573Srgrimesyour programs, too. 201573Srgrimes 211573Srgrimes When we speak of free software, we are referring to freedom, not 221573Srgrimesprice. Our General Public Licenses are designed to make sure that you 231573Srgrimeshave the freedom to distribute copies of free software (and charge for 241573Srgrimesthis service if you wish), that you receive source code or can get it 251573Srgrimesif you want it, that you can change the software or use pieces of it 261573Srgrimesin new free programs; and that you know you can do these things. 271573Srgrimes 281573Srgrimes To protect your rights, we need to make restrictions that forbid 291573Srgrimesanyone to deny you these rights or to ask you to surrender the rights. 301573SrgrimesThese restrictions translate to certain responsibilities for you if you 311573Srgrimesdistribute copies of the software, or if you modify it. 321573Srgrimes 331573Srgrimes For example, if you distribute copies of such a program, whether 341573Srgrimesgratis or for a fee, you must give the recipients all the rights that 3555127Speteryou have. 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You may copy and distribute verbatim copies of the Program's 801573Srgrimessource code as you receive it, in any medium, provided that you 811573Srgrimesconspicuously and appropriately publish on each copy an appropriate 821573Srgrimescopyright notice and disclaimer of warranty; keep intact all the 831573Srgrimesnotices that refer to this License and to the absence of any warranty; 841573Srgrimesand give any other recipients of the Program a copy of this License 856683Sphkalong with the Program. 8614523Shsu 871573SrgrimesYou may charge a fee for the physical act of transferring a copy, and 8814523Shsuyou may at your option offer warranty protection in exchange for a fee. 891573Srgrimes 901573Srgrimes 2. You may modify your copy or copies of the Program or any portion 911573Srgrimesof it, thus forming a work based on the Program, and copy and 921573Srgrimesdistribute such modifications or work under the terms of Section 1 931573Srgrimesabove, provided that you also meet all of these conditions: 941573Srgrimes 951573Srgrimes a) You must cause the modified files to carry prominent notices 961573Srgrimes stating that you changed the files and the date of any change. 971573Srgrimes 981573Srgrimes b) You must cause any work that you distribute or publish, that in 991573Srgrimes whole or in part contains or is derived from the Program or any 10014523Shsu part thereof, to be licensed as a whole at no charge to all third 1011573Srgrimes parties under the terms of this License. 1021573Srgrimes 1031573Srgrimes c) If the modified program normally reads commands interactively 1041573Srgrimes when run, you must cause it, when started running for such 10514523Shsu interactive use in the most ordinary way, to print or display an 1061573Srgrimes announcement including an appropriate copyright notice and a 1071573Srgrimes notice that there is no warranty (or else, saying that you provide 1081573Srgrimes a warranty) and that users may redistribute the program under 1091573Srgrimes these conditions, and telling the user how to view a copy of this 1101573Srgrimes License. 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But when you 1191573Srgrimesdistribute the same sections as part of a whole which is a work based 1201573Srgrimeson the Program, the distribution of the whole must be on the terms of 1211573Srgrimesthis License, whose permissions for other licensees extend to the 1221573Srgrimesentire whole, and thus to each and every part regardless of who wrote it. 1231573Srgrimes 1241573SrgrimesThus, it is not the intent of this section to claim rights or contest 1251573Srgrimesyour rights to work written entirely by you; rather, the intent is to 1261573Srgrimesexercise the right to control the distribution of derivative or 1271573Srgrimescollective works based on the Program. 1281573Srgrimes 1291573SrgrimesIn addition, mere aggregation of another work not based on the Program 13038534Sdfrwith the Program (or with a work based on the Program) on a volume of 13138534Sdfra storage or distribution medium does not bring the other work under 13214523Shsuthe scope of this License. 13314523Shsu 1341573Srgrimes 3. You may copy and distribute the Program (or a work based on it, 1351573Srgrimesunder Section 2) in object code or executable form under the terms of 1361573SrgrimesSections 1 and 2 above provided that you also do one of the following: 1371573Srgrimes 1381573Srgrimes a) Accompany it with the complete corresponding machine-readable 1391573Srgrimes source code, which must be distributed under the terms of Sections 1401573Srgrimes 1 and 2 above on a medium customarily used for software interchange; or, 14157321Speter 1421573Srgrimes b) Accompany it with a written offer, valid for at least three 1431573Srgrimes years, to give any third party, for a charge no more than your 1441573Srgrimes cost of physically performing source distribution, a complete 1451573Srgrimes machine-readable copy of the corresponding source code, to be 1461573Srgrimes distributed under the terms of Sections 1 and 2 above on a medium 1471573Srgrimes customarily used for software interchange; or, 1481573Srgrimes 1491573Srgrimes c) Accompany it with the information you received as to the offer 1501573Srgrimes to distribute corresponding source code. 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If, as a consequence of a court judgment or allegation of patent 198infringement or for any other reason (not limited to patent issues), 199conditions are imposed on you (whether by court order, agreement or 200otherwise) that contradict the conditions of this License, they do not 201excuse you from the conditions of this License. If you cannot 202distribute so as to satisfy simultaneously your obligations under this 203License and any other pertinent obligations, then as a consequence you 204may not distribute the Program at all. For example, if a patent 205license would not permit royalty-free redistribution of the Program by 206all those who receive copies directly or indirectly through you, then 207the only way you could satisfy both it and this License would be to 208refrain entirely from distribution of the Program. 209 210If any portion of this section is held invalid or unenforceable under 211any particular circumstance, the balance of the section is intended to 212apply and the section as a whole is intended to apply in other 213circumstances. 214 215It is not the purpose of this section to induce you to infringe any 216patents or other property right claims or to contest validity of any 217such claims; this section has the sole purpose of protecting the 218integrity of the free software distribution system, which is 219implemented by public license practices. Many people have made 220generous contributions to the wide range of software distributed 221through that system in reliance on consistent application of that 222system; it is up to the author/donor to decide if he or she is willing 223to distribute software through any other system and a licensee cannot 224impose that choice. 225 226This section is intended to make thoroughly clear what is believed to 227be a consequence of the rest of this License. 228 229 8. If the distribution and/or use of the Program is restricted in 230certain countries either by patents or by copyrighted interfaces, the 231original copyright holder who places the Program under this License 232may add an explicit geographical distribution limitation excluding 233those countries, so that distribution is permitted only in or among 234countries not thus excluded. In such case, this License incorporates 235the limitation as if written in the body of this License. 236 237 9. The Free Software Foundation may publish revised and/or new versions 238of the General Public License from time to time. Such new versions will 239be similar in spirit to the present version, but may differ in detail to 240address new problems or concerns. 241 242Each version is given a distinguishing version number. If the Program 243specifies a version number of this License which applies to it and "any 244later version", you have the option of following the terms and conditions 245either of that version or of any later version published by the Free 246Software Foundation. If the Program does not specify a version number of 247this License, you may choose any version ever published by the Free Software 248Foundation. 249 250 10. If you wish to incorporate parts of the Program into other free 251programs whose distribution conditions are different, write to the author 252to ask for permission. For software which is copyrighted by the Free 253Software Foundation, write to the Free Software Foundation; we sometimes 254make exceptions for this. Our decision will be guided by the two goals 255of preserving the free status of all derivatives of our free software and 256of promoting the sharing and reuse of software generally. 257 258 NO WARRANTY 259 260 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY 261FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN 262OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES 263PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED 264OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 265MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS 266TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE 267PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, 268REPAIR OR CORRECTION. 269 270 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING 271WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR 272REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, 273INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING 274OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED 275TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY 276YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER 277PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE 278POSSIBILITY OF SUCH DAMAGES. 279 280 END OF TERMS AND CONDITIONS 281 282 How to Apply These Terms to Your New Programs 283 284 If you develop a new program, and you want it to be of the greatest 285possible use to the public, the best way to achieve this is to make it 286free software which everyone can redistribute and change under these terms. 287 288 To do so, attach the following notices to the program. It is safest 289to attach them to the start of each source file to most effectively 290convey the exclusion of warranty; and each file should have at least 291the "copyright" line and a pointer to where the full notice is found. 292 293 <one line to give the program's name and a brief idea of what it does.> 294 Copyright (C) <year> <name of author> 295 296 This program is free software; you can redistribute it and/or modify 297 it under the terms of the GNU General Public License as published by 298 the Free Software Foundation; either version 2 of the License, or 299 (at your option) any later version. 300 301 This program is distributed in the hope that it will be useful, 302 but WITHOUT ANY WARRANTY; without even the implied warranty of 303 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 304 GNU General Public License for more details. 305 306 You should have received a copy of the GNU General Public License along 307 with this program; if not, write to the Free Software Foundation, Inc., 308 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 309 310Also add information on how to contact you by electronic and paper mail. 311 312If the program is interactive, make it output a short notice like this 313when it starts in an interactive mode: 314 315 Gnomovision version 69, Copyright (C) year name of author 316 Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 317 This is free software, and you are welcome to redistribute it 318 under certain conditions; type `show c' for details. 319 320The hypothetical commands `show w' and `show c' should show the appropriate 321parts of the General Public License. Of course, the commands you use may 322be called something other than `show w' and `show c'; they could even be 323mouse-clicks or menu items--whatever suits your program. 324 325You should also get your employer (if you work as a programmer) or your 326school, if any, to sign a "copyright disclaimer" for the program, if 327necessary. Here is a sample; alter the names: 328 329 Yoyodyne, Inc., hereby disclaims all copyright interest in the program 330 `Gnomovision' (which makes passes at compilers) written by James Hacker. 331 332 <signature of Ty Coon>, 1 April 1989 333 Ty Coon, President of Vice 334 335This General Public License does not permit incorporating your program into 336proprietary programs. If your program is a subroutine library, you may 337consider it more useful to permit linking proprietary applications with the 338library. If this is what you want to do, use the GNU Lesser General 339Public License instead of this License. 340